WMSIC Electronic Components

YANGJIE LL4148

YANGJIE LL4148
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Product image

ModelLL4148
PackageLL-34
BrandYANGJIE
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 25+

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Technical data

Product details

13 specifications

Core information

Product name
YANGJIE LL4148
Type
LL-34
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YANGJIE
Electronic Component
LL4148
Electronic Component
1
Package
LL-34
Electronic Component
0.052g
Electronic Component
1
Electronic Component
BM0221340118
Electronic Component
Electronic Component
Electronic Component
2500

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

LL4148 产品概述

产品名称： LL4148 开关二极管
品牌： YANGJIE（扬杰）
封装形式： LL-34
电气特性：

  • 正向压降（Vf）：1V @ 50mA
  • 最高反向电压（Vr）：100V
  • 反向泄漏电流（Ir）：5µA @ 75V
  • 最大正向电流（If）：300mA

一、产品简介

LL4148是一种高性能的开关二极管，广泛应用于各种电子电路中，尤其适用于信号处理、整流、开关电源等应用。其采用了LL-34封装，具有良好的散热性能和更佳的机械强度，适合于在性能要求较高的环境中使用。

二、电气特性分析

LL4148的电气特性使其在多种电路中表现出色：

  1. 正向压降：LL4148在50mA的工作电流下有1V的正向压降，这一特性使其在高频开关应用中能够有效降低功耗，提高电路效率。

  2. 最高反向电压：其最大反向电压为100V，使得LL4148能够用于高电压应用场合，无论是信号切换还是整流电路。

  3. 反向泄漏电流：在75V的反向电压下，反向泄漏电流为5μA，显示出其优良的绝缘性能。这一特性对于保持电路稳定性至关重要，因为过高的泄漏电流可能导致电路误动作。

  4. 最大正向电流：LL4148可以承受最高300mA的正向电流，对于许多低功耗的应用场景来说，这一指标足以满足需求。

三、应用领域

LL4148开关二极管广泛应用于多个领域，包括但不限于：

  1. 开关电源：此类二极管在开关电源的整流电路、钳位电路中被广泛使用，能够有效地提高转换效率，降低功耗。

  2. 信号切换：LL4148的快速开关特性使其在信号处理或信号传输电路中非常有效，比如用于快速开关、保护电路等。

  3. 整流应用：在整流电路中，LL4148能够高效地将交流信号转换为直流信号，适用于各种电源适配器和转换器。

  4. 保护电路：可用作反向电流保护或过压保护，保护敏感元件，延长电路的使用寿命。

四、优点

  1. 高效的性能：低正向压降和高反向电压功能，确保了电路的高效率和稳定性。

  2. 能够快速开关：具备迅速切换的能力，适用于高频应用。

  3. 良好的耐压性和可靠性：足以应对恶劣的工作环境，确保在高电流和高电压情况下的稳定性。

  4. 广泛的兼容性：LL4148可在多种电路中使用，使其成为了设计师的优选器件。

五、总结

LL4148开关二极管以其卓越的电气特性和良好的封装形式在电子行业中占据着重要的位置。无论是在开关电源、信号切换还是其他电路中，LL4148都展现出可靠的性能与稳定性。它不仅能满足基本的电子设计需求，还能在复杂电路中保障设备的长效运行。对于寻求高性能二极管解决方案的工程师而言，LL4148无疑是一个值得推荐的选择。

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